Hygrometek



A. WOLOSZYN.

4 HYGROMETER.

APPLICATION FILED MAY 21, I919.

1 ,3 1 7, 189. Patented Sept. 30,1919.

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ALEX WOLOSZYN, OF CHICAGO, ILLINOIS.

HYGROMETEB.

Specification of Letters Patent.

Patented Sept. 30, 19.19.

Application filed May 21, 1919. Serial No. 298,702.

To all whom it may concern:

Be it known that I, ALEX lVoLosZYN, a citizen of Ukraina, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Hygrometers, of which the following is a specification.

This invention relates to improvements in hygrometers, or devices for announcing rain fall. and has as its special object the provision of a simple apparatus which may be placed at any desired point, as upon the roof of a building, exposed to rain so that the same causes a signal to be given at any desired point remote therefrom.

A further object is to provide a simple and inexpensive construction for the purpose of announcing that a rain is taking place.

These objects are attained by the novel construction and combination of parts hereinafter described and shown in the accompanying drawings, forming a material part of this disclosure, and in which Figure 1 is a vertical sectional view of a hygrometer made in accordance with the invention, the section being taken substantially on line 11 of Fig. 2.

Fig. 2 is a top plan view of the same, and

Fig. 3 is a diagrammatic view illustrating the electrical connections engaged there- With.

Referring to the dawings, a metallic disk is indicated by the numeral 10 the same having a plurality of supports 11, their outturned flanged base elements having openings through which securing means 12 may be passed so as to hold the instrument firmly upon a supporting surface.

The inner or central portion 14 of the disk 10 is formed concavely acting in the manner of a pan receiving the rain drops,

as they fall.

Secured in an opening formed in the center of the pan 14: is a cylinder 15, having an imperforate bottom wall 16, and containing a plurality of openings 17 through its side wall substantially level with the upper surface of the pan so that water may readily pass into the cylinder.

Secured upon the inturned or flanged cover elements 18 of the cylinder is a disk 19, also having a depressed portion in which is fixed a flanged ring 20 made of non-conducting material, and secured in the ring, is a hollow tubular element 21, terminating in a head 22, in which is fixed a pin 23, formed with an inner enlarged contact element 24, the outer extending end of the pin connecting with an electrical conductor 25, a similar conductor 26, being engaged with the upper end ofthe cylinder 15 by the binding post 27.

A plunger 28 passes slidably into the element 21 through the insulating bushing20, where it is provided with a contact 29, the lower end of the plunger having a fixed disk 30, extending downward into the cylinder 15, the same being adapted to make contact with the interior of a float 32, freely movable within the cylinder, and which is caused to rise by the raindrops collected in the pan l4: entering the cylinder through the openings 17.

The rising of the float 32, here shown to be spherical, presses the plunger 28 upwardly so as to cause engagement of the contact elements 29 and 24 in an obvious manner.

A battery 35 is engaged with the wire 2%, the other. terminal 36 of the battery being controlled by a switch 37, so that when the switch is in circuit the bell 38, is connected by the wire 39 leading from the switch, this wire communicating with one pole of the bell while the other pole is in electrical communication with the wire 29. Thus the rising of the float 32 will cause the bell to audibly announce at a distance from the apparatus the 'fact that rain is falling in considerable quantities.

Having thus described my invention and set forth the manner of its construction, application and use what I claim as new and desire to secure by Letters Patent, is

1. In a hygrometer, the combination with a concave plate adapted to receive rain, a cylinder set therein, said cylinder having openings registerable with the upper sur face of said concave plate, a source of electrical energy, connections between said source of electrical energy and said cylinder, a plunger movably mounted in said cylinder, means for raising said plunger upon the entrance of water thereto, contact elements formed with said plunger, and a fixed electrical contact in connection with said source of electrical energy carried by insulated elements attached to the upper end of said cylinder.

2. In a hygrometer, the combination with a fixed disk having a concave center, a cylinder set in said concave center, and adapted to receivewater"therefrom, a cover for said cylinder and an imperi'orate bottom formed with said cylinder, of a float operable within said cylinder, an insulated cap, carried by said cover, electrical connections to said cylinder and to said cap, and a plunger operably engaged in said cylinder cover, adapted to be raised by the movement of said float, whereby the electrical connections are brought into operative contact.

3. In a hygrometer, the combination with a circular disk having a central concave portion, a cylinder secured centrally in said concave portion, said cylinder having an imperforate bottom, and containing openings communicating with" said concave portion, a cap rigidly engaged with the top of said cylinder, non-conducting material arranged between said cylinder and said cap, a pin fixed in said cap, a plunger movable through said eover adapted to make contact with said pin, a float in said cylinder adapted to make contact with said plunger, and electrical connections respectively to said pin and to said cylinder whereupon upon the entrance of water to said cylinder said plunger is caused to rise and form electrical contact.

In testimony whereof I have aiiixed my signature.

ALEX 'WOLOSZYN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

